Adjustment Of The Thread Take Up Spring - JUKI PLK-G2516R Technical Manual

(4) Adjustment of the attaching position of the protector
Attach the protector (No.6) underneath the movable
knife (No.1) and fix it with the same set screw (No.7)
for the movable knife (No.1) at the position where the
point of the protector (No.6) is off 0.5mm left from the
needle center (No.4) and 4mm backward from the
point of the movable knife (No.1).

7-15. Adjustment of the thread take up spring

(1) Loosen the set screw (No.2) and turn the whole thread tension regulator (No.3) then, adjust the thread
take up spring (No.1) stroke to be in 9 to 10mm, which is standard stroke.
(2) Insert the screw driver into the slit of the thread tension regulator and adjust the thread take up spring
tension. When tightening the screw driver clockwise, the thread take up spring tension becomes tight,
and when loosening the screw driver counterclockwise, the thread take up spring tension becomes
loose. For the adjustment of the thread take up spring tension, tighten the set screw (No.2) so that the
whole thread tension regulator does not turn.
9～10mm
<1>
<2>
- 33 -
<3>
Within 0.5mm
<6>
<8>
<1>: Thread take up spring
<2>: Set screw
<3>
<3>: Thread tension regulator
<7>
<1>